Eurotherm 6100, User Manual

Page: 48 / 397

100/180MM DISTRIBUTED GRAPHIC RECORDER: USER GUIDE
Page 32 HA029324
Issue 11 Oct 14
3.4.2 Horizontal Trend display
Entered from the Vertical Trend display by means of the down arrow key, or selected via the Root Menu
‘Goto View’ key, this display mode (fi gure 3.4.2a) is similar to the Vertical Trend display described in sec-
tion 3.4.1 above, except that the traces are produced horizontally rather than vertically.
Figure 3.4.2a Horizontal Trend Display
One of the channels is defi ned as being the ‘current’ or ‘scale’ channel and this is identifi ed on the chart
by its pen icon being diamond shaped rather than triangular as for non-current channels. If a channel
is included in the display group, but its status is ‘not good’ for some reason, then its pen icon is hollow.
Each channel in the display group becomes the ‘current’ channel, in turn, for approximately 10 seconds
– i.e. the channels are cycled-through, starting with the lowest numbered channel. Once the fi nal chan-
nel in the group has been displayed for 10 seconds, the lowest numbered channel is returned to and the
sequence repeats. This scrolling process can be stopped using the Channel Cycling key in the Option
menu.
There are two faceplates associated with this display mode, one above the ‘chart’, showing the current
channel’s descriptor and its digital value; the other - to the right of the ‘chart’ - showing a bargraph rep-
resentation of the current channel’s value, together with a scale showing the low and high range values
for the channel. Touching either of these faceplates causes the current channel number to increment.
To select a particular channel to be the current channel, the relevant pen icon can be touched. In either
case, the bargraph and the background colour of the channel descriptor take the colour of the new cur-
rent channel.
Time and date are printed on the ‘chart’ immediately to the right of grid lines, and it is to these grid lines
that the printed time and date relate.
Touching the trace for a few seconds, or using the Option key then ‘Enter History’ calls the trend history
page. See
section 3.4 , above for more details.
G r o u p n a m e 14:21:30
1 2 / 0 7 / 0 6
Engineer
Channel 1 7 0 0 . 8 7
˚ C
400
800
14:16:20
12/07/06 14:13:40
12/07/06 14:11:00
12/07/06
Bargraph
Current pen icon
Time
(at adjacent gridline)
Faceplates for current
channel.
Touch either faceplate to
increment channel
(or touch pen to select
channel).
12/07/06 12:02:20 Alarm(s) off 2 (1)
If this arrow head is displayed,
then touching the message bar
displays previous messages
Latest message Message bar
Non-current
pen icon
Alarm mark
(Abs High)